T M 5 - 6 1 1 5 - 5 8 5 - 1 2
NAVFAC P-8-262-12
T O - 3 5 C 2 - 3 - 4 5 5 -1
TM-05684C-12
Table 4-2. Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. ENGINE FAILS TO CRANK WHEN MASTER SWITCH IS HELD IN THE START POSITION.
S t e p 1 .
U s e s l a v e r e c e p t a c l e w h e n e x t r a c r a n k i n g p o w e r i s r e q u i r e d .
S t e p 2 . T e s t b a t t e r i e s ( p a r a g r a p h 4 - 2 5 ).
R e p l a c e d e f e c t i v e b a t t e r i e s . C h e c k b a t t e r y a l t e r n a t o r f u s e a n d r e p l a c e i f n e c e s s a r y .
S t e p 3.
Inspect battery and starter cables for corrosion and loose connections.
Clean or tighten cables.
S t e p 4.
Test “START’’ position of master switch (paragraph 4-38).
R e p l a c e d e f e c t i v e m a s t e r s w i t c h.
s t e p 5 .
Inspect and test for open starter solenoid switch or for short to ground (paragraph 4-26).
Replace defective solenoid.
S t e p 6.
Inspect and test starter lockout switch (paragraph 4-28).
Adjust switch points if they are not closing or replace defective switch.
2. STARTER TURNS BUT WILL NOT ENGAGE ENGINE.
S t e p 1 . I n s p e c t s t a r t e r d r i v e a s s e m b l y ( p a r a g r a p h 4 - 2 6 ) .
Clean drive assembly if it is sticking.
Step 2. Inspect starter drive gear assembly for worn or broken teeth (paragraph 4-26).
R e p l a c e s t a r t e r.
3. ENGINE CRANKS NORMALLY BUT FAILS TO START.
Step 1. Test stop solenoid for correct operation (paragraph 4-23).
Replace bad solenoid.
Step 2. Inspect fuel pumps for clogged strainers (paragraph 4-21).
R e p l a c e s t r a i n e r e l e m e n t.
Step 3. Inspect for clogged fuel strainer element or fuel filter elements (paragraph 4-20).
C l e a n s t r a i n e r e l e m e n t ; r e p l a c e f u e l f i l t e r e l e m e n t s.
Step 4. Check for clogged fuel lines to injector pump.
Clean or replace clogged fuel lines.
Step 5. Test for worn or damaged fuel pumps (paragraph 4-21).
Replace bad pumps.
Step 6. Inspect and test intake manifold heaters (paragraph 4-43).
R e p l a c e b a d h e a t e r s .
C h a n g e
5
4 - 7
